"A monad is just a monoid in the category of endofunctors" is basically the "Bro do you even lift?" of functional programming
@DrMathochist @jerrykuch I'm trying to remember if an endofunctor is also a coendofunctor
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@bascule@jerrykuch endo-X has same source and target so is self-dual notion in general.Thanks. Twitter will use this to make your timeline better. UndoUndo
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